Proportioner resetting mechanism



April 22, 1952 G. J. KLOPFENSTEIN ,3

PROPORTIONER RESETTING MECHANISM Filed Feb. 8, 1947 6 Sheets-Sheet l INVENTOR. GERHLD J. KLOPFENSTUN April 1952 G. J. KLOPFENSTEIN v 2,593,894

PROPORTIONER RESETTING MECHANISM INVENTOR. GERALD J. KLoPFsNsTam BYW/% ATTORNEY April 22, 1952 G. J. KLOPFENSTEIN 2,593,894

PROPORTIONER RESETTING MECHANISM Filed Feb. 8, 1947 6 Sheeis-S'neet 5 INVENTOR.

GERALD J. KLOPFEN STE\N RTTORNEY April 22, 1952 G. J. KLOPFENSTEIN PROPORTIONER RESETTING MECHANISM 6 Sheets-Sheet 4 Filed Feb. 8, 1947 INVENTOR EN /W./

A T TORNEY GERALD J. KLoPF 8W April 1952 G. .1. KLOPFENSTEIN 2,593,894

PROPORTIONER RESETTING MECHANISM Filed Feb. 8, 1947 6 Sheets-Sheet 6 INVENTOR. GERFILD J. KLoPFENsTEm BYWWW ATTbFNEY Patented Apr. 22, 1952 PROPORTIONER RESETTING MECHANISM Gerald J. Klopfenstein, Fort Wayne, Ind., assignor to Bowser, Inc., Fort Wayne, Ind., a corporation of Indiana Application February 8, 1947, Serial No. 727,467

10 Claims. (01. 22220) This invention relates to a liquid proportioner; more specifically, it relates to a proportioner for batch delivery of two or more liquids into a single container.

These and other objects will become apparent from a study of this specification and the drawings which are attached hereto and form a part hereof, and in which:

The device is primarily intended for use in Figure 1 is a plan view of the proportioner transferring two or more liquids into a drum or showing the general arrangement of the meters, other container in measured quantities, with the the predetermined stop mechanisms, the regisfinal quantity of each d o a predetermined ters, and the reset for the predetermined mechliquid volume and with the sum of the quantianism. ties equalling the rated capacity of the container. Figure 2 is an elevation of the proportioner It is evident that continuous delivery of liqas viewed from the front of Figure 1. uid, for which most proportioners are designed, Figure 3 is a sectional view of one of the reset is not satisfactory where individual containers clutches taken on the line 3-3 of Figure 1. are to be filled. Therefore, it is necessary that Figure 4 is a View of the predetermined stop the apparatus measure the desired quantity of mechanism taken from above and with a part of each liquid and deliver the aggregate through a the cover broken away, common discharge. Figure 5 is a sectional view of the predeter- An object of this invention is to provide a promined stop mechanism taken on the line 55 portioner comprised of two or more liquid meters of Figure 4 showing the manual tripping mechreceiving liquids from individual conduits and anism. delivering into a common discharge. Figure 6 is a sectional view of the predeter- Another object of this invention is to provide mined stop mechanism taken on the line 6-6 of a liquid proportioner comprised of two or more Figure 4 showing the automatic tripping mechmeters wherein the quantity of liquid passing anism. through each meter is controlled by a predeter- Figure '7 is a sectional view taken substantially mined stop mechanism. on line 1-1 of Figure 11 of the predetermined It is another object Of th s vent on to p O- stop mechanism reset as seen from the left in vide a liquid proportioner comprised of two or Figure 4 showing the reset mechanism in the more meters, each having a predetermined stop reset position occupied when the indicator dials mechanism for closing a shut-off valve, wherein are preset. all of the predetermined stop mechanisms are re- Figure 8 is a view similar to Figure 7 showconditioned in one operation for the next deing the position of the parts when the reset shaft livery. occupies its farthest counterclockwise position Still another object of this invention is to propreparatory to resetting. vide a proportioner to transfer measured quan- Figure 9 is a view similar to Figures '7 and 8 tities of two or more liquids from storage into a showing the position of the parts just as the common container. stop pawl has been picked up prior to completion It is still another object of this invention to of the resetting of the wheels to their preset posiprovide a proportioner to transfer two or more tions. liquids from storage into a common container, Figure 10 is a section of the predetermined each liquid being limited in quantity by its restop mechanism taken on the line l0-l0 of Figspective meter, and the sum of the quantities ure 11. passing through all of the meters equalling a Figure 11 is a section of the predetermined predetermined volume. stop mechanism reset taken on the line ll-H It is still another object of this invention to 5 of Figure provide a liquid proportioner wherein the quan- Figure 12 is a view of the inferior order inditity of each liquid delivered is regulated by a cator dial and cam assembly as viewed from the meter and a predetermined stop mechanism, and left in Figure 4.

a. series of clutches arranged on a common reset Figure 13 is a view of a superior order indifor all the predetermined mechanisms. 5 cator dial and cam assembly as viewed from the It is still another object of this invention to left in Figure 4. provide a proportioner for repeat quantity de- Figure 14 is a view of a superior order indiliveries wherein the proportion and the total cator dial and cam assembly as viewed from the quantity delivered upon each operation is mainright inFigure 4. tained constant throughout a series of deliveries. Figure 15 is a section of the superior order It is yet another object of this invention to indicator dial and cam assembly taken on the line provide a liquid proportioner which is adjustl5l5 of Figure 14. able to permit variations in the proportion and Figure 16 is an end view of the predetermined in the total quantity of liquid comprising the stop mechanism reset taken on the line Iii-l6 of proportion. Figure 11.

Referring to Figures 1 and 2 of the drawings the numeral I designates a rectangular frame made of angle irons 3 and in the base, risers 1, and the angles 9 and II forming a second rectangle on top of the risers. The angles 3 have holes I3 for bolting the frame to the floor.

Liquid meters I5 are suspended on the frame by the piping I1 (to be described later). Mounted on and driven by each of the meters is a repeat quantity, predetermined stop mechanism I9, hereinafter referred to as a predeterminer, and a register 2 I.

A shut-off valve 23 is connected by the linkage 25 to the trip bar 21 of the predeterminer and by nipple 29 to theinlet side of the meter. Each valve has an inlet 3I and a port 33 connecting with the outlet 35. A valve poppet 31 is urged into closed position b the spring 39. The lever 4| straddles the shaft 43 and is fulcrumed on an extension 45 of the valve cap 41. A collar 49 on the shaft directly above the lever receives the thrust of the lever when pressed down at the opposite end thereby raising the shaft and the poppet to open the port 33. The linkage 25 is comprised of a pair of arms 5I secured to the shaft 43 and to the trip bar 21 and a second pair of arms 53 secured to the valve body and to the trip bar at the same point as arms 5| thus forming a toggle. As the shaft '43 is raised by lever M to open the poppet, the arms SI and 53 at the same time move the trip bar 21 to the right of the position shown in Figures 1 and 2 where it is latched as will be described below to hold the valve open.

The meters are shown staggered in Figures 1 and 2 to provide visibility of the registers and the staggering necessitates the addition of a nipple 55 on the inlet side of the shut-off valve placed farthest to the left so that the piping will extend over the frame and serve as a support for the meters.

On the outlet side of the left-hand meter in Figures 1 and 2 is a nipple 51, and elbow 59, and another nipple 6| discharging into the T93, and on the outlet side of the other meter is a nipple 65, a union 61, a nipple 69, an elbow 1|, and another nipple 13 discharging into the T 53. Bracket 14 and U bolts 15 hold the assembly against the top of angles II. The frame angle II is notched adjacent the bracket 14 to provide clearance for the valve 23.

The predeterminers have a common reset mechanism 11 for resetting each predeterminer to its preset condition after completion of the delivery. Right-angled brackets 19 extend inward and above the frame angles I I and provide bearings for the reset shaft 8|. A crank 83 is fastened to the right end of the shaft as shown inFigures 1 and 2. Collars 85 are located on the shaft inside the brackets 19 and are secured to the shaft by set screws 81 to prevent lateral movement of the shaft. A pair of friction clutches 89' (shown in detail in Figure 3) are located along the shaft.

The clutches 99 (see Figure 3) are comprised of a driving member 9| secured to the shaft 8| by the set screw 93 and driven member 95, which is made up of a sprocket 91 and a friction facing 99 held together by rivets I9 I. Said driven member is mounted for free rotation on the shaft. A spring I03, is interposed between the sprocket 91 and a collar I05 fastened to the shaft by set screw I01 so that the spring will keep the facing in engagement with the driving member.

The predeterminer, generally indicated by the numeral I9, is a modification of the predetermined stop mechanism disclosed in the United States Patent No. 2,228,820 issued to C. P. Griffith et al. on January 14, 1941. The predeterminer disclosed herewith differs from the Grifiith predetermined stop mechanism in that it provides for the repeated presetting of any quantity set up on the dial, which quantity setting is maintained till such time as the dial indicators are indexed to a different predetermined quantity.

Referring to Figures 4, 5 and 6 the numeral I99 designates a frame for the predeterminer which is mounted on the meter by cap screws (not shown).

A slotted coupling III engages the register drive shaft I I2 of the meter and rotation is transferred thereby to shaft II3 and worm I15. The shaft II3 extends through the worm and the upper end H6 is flattened to engage a coupling similar to coupling I I I on register 2 I. The worm wheel H1 is mounted for rotation on the stud II9, which is in turn carried by the frame I99. A spur gear I2I is fixed to the worm wheel and drives another spur gear I23 which is a part of the first or inferior dial indicator assembly I25.

The first and the second dial indicator assemblies use the same size hubs I29, shown in Figure 12, while the hubs in the third, also designated by the numeral I29 (Figure 13), and the fourth (not shown) are successively larger. The purpose of this will be explained later. In other respects the dial indicators are identical with the exception that the cam of the first assembly is notched differently and the gear I3I carries the gear I23 which is not on the other assemblies.

Referring to Figures 12, 13, 14 and 15, the first indicator dial assembly is comprised of a spur gear I3I pinned to the gear I23. The gear I3I carries a pair of pivotally mounted pawls I33 which are urged toward the periphery of the gear by springs I35. The gear slides over the end of the hub I29 stopping against a shoulder thereon and against the radial face of the indicator dial I31. The dial has a cylindrical recess 139 to receive the ratchet I4I. A cam I43, a transfer pinion lockin disc I45, and a step-tooth gear I41 are assembled on the hub beyond the dial and are held together as a unit with the dial indicator by pins I49. The cam I43 of the first dial indicator is notched as shown at I5I (Figure 12) and a sector of the periphery cut away as shown at I53. The cams I55 for the second, third and fourth dial indicators are notched as shown at I51 (Figure 13) It Will be noted that the radial edge of each notch I51 is on one side while the radial edge of notch I5I in the first wheel is on the opposite side of the notch I5I. 'The reason for this difference will become apparent in the description of operation. The transfer pinion locking disc I45 (Figs. 12, 13 -and15) has a cut-out portion I59 in which is nested the set-back pawl I6I and the spring I63 which urges the pawl toward the center of the hub through a slot I55 extending in-from the end of the hub.

The dials are arranged in the order named from right to left in Figure 4 on the shafts I15, I11, I19 and I9I. A spacer I69 is inserted between the first dial indicator and the bearing in ably mounted on a shaft I16 fixed in the frame I09. The pinion is in turn in mesh with gear I3I of the dial assembly immediately to the left of the driving dial as viewed in Figure 4.

The presetting mechanism I81 (Fig. 11) is comprised of four telescopic shafts designated by the numerals I15, I11, I19 and I8I respectively from right to left in the figure. Each shaft has a respective keyway designated I83, I85, .I81 or I89 spaced to engage the reset pawls I6I in the first, second, third and fourth indicator dials respectively when they are mounted as shown in Figure 4. The shaft I8I eXtends through a bushing I9I having a shoulder I93 with one end I95 of the bushing fitted into a hole I91 in the frame I09 with the shoulder butting against the outside of the frame.

The reset stop mechanism designated generally by the numeral I99 (see Figs. 7 to 11, inclusive) is mounted on the bushing I9I on the side of shoulder I93 opposite the frame I09 with the support plate 20I held in a position parallel to the frame by a spacer 203 and a screw 205, the latter engaging the threaded hole 201 in the frame. The support plate carries the outwardly projecting lock pawl post 209 and the zero stop post 2 (Figs. 7 to 9). The reset plate 2I3 is mounted on a shouldered hub 2I2 (see Fig. which slides over the bushing I9I. The hub extends through the plate and is swedged over on the end after a collar 2I4 has been slipped over it and against the reset plate 2I3. The reset plate has a radial portion 2I5 which terminates in projections 2I1 and 2I9 which, with post 2I I, limit the rotation of the reset plate. A leg portion 22I of the reset plate 2I3 has a post 222 which carries a pawl 223 having an ear 2,25 bent up at right angles at its free end. The spring 221 urges the pawl in a counterclockwise direction.

The circular, reset operating disc 229 (Figs. 7 to 10) has a single peripheral notch 23I provided with a cam edge 232, and is swedged fast to the smaller of two shoulders on the hub 233 (Fig. 10). A pin 235 projects from the hub side of the disc. A spacer 231 is also mounted on the smaller shoulder and is adjacent the locking disc 239 which is mounted for free rotation upon the larger shoulder. The locking disc is circular in shape and has three peripheral notches 24I, 243 and 245, as shown in Figures 7, 8 and 9, notch 24I being identical in shape to notch 23I in the reset operating disc. Pin 235 extends through the notched portion 245 in disc 239 to limit the rotation of the locking disc in relation to the reset operating disc.

The projection 225 on the pawl 223 engages the notches 23I and MI in the reset operating disc and the locking disc when they are in alignment.

A pawl 241 is pivotally mounted on the post 209 and is urged by a torsion spring 249 in a clockwise direction (Figs. '1 to 9) to engage the notch 243 of the locking disc when it moves into position. The other end of the spring 249 is hooked over the reset plate 2I3 to urge it in a counterclockwise direction with projection 2I9 against the stop post 2I I.

The indexing and reset mechanism 25I (Fig. 11) has a circular driving disc 253 staked to the hub 233. A.projection 255 (Fig. 16) extends out from the periphery of the disc and diametrically opposed studs 251 are riveted to the outside face of the driving disc.

The indexin mechanism is comprised of four assemblies numbered from left to right in Figure 11 as follows: first dial indicator indexing assembly 259, second dial indicator indexing assembly 28I, third dial indicator indexing assembly 263, and fourth dial indicator indexing assembly 265. It will be noted that the dial indicators are numbered from right to left and the indexing assemblies from left to right because the lefthand indexing assembly controls the right-hand dial assembly. The indexing assemblies differ only in the size of the central hole, which must match the size of the telescopic shaft which it is intended to actuate and in the method of mounting the first indexing assembly.

The first indexing assembly 259 has a tentooth ratchet 261 (Figs. 11 and 16) with integral hubs 269 and 21I extending out on opposite sides. A set screw 213 is threaded into the hub 269 and engages the shaft I15 for locating purposes, after which pin 215 is inserted into a hole drilled through the hub and the shaft to hold the parts against relative rotation.

An indexing means is comprised of the indexing plate 211, having a finger-like projection 210 and two abutments or stops 28I and 283 which span one of the studs 251 to limit the travel of the indexing arm assembly and the stud 284 for pivotally mounting the indexing pawl 285 which has a. hooked end 281 to engage the teeth of the ratchet 261 and a tall 289 which is engaged by spring 305 for holding the pawl against the ratchet. The indexing plate is mounted on a hub 29I which rides on the hub 211 of the ratchet 261.

The second, third and fourth indexing assemblies, numbered 28 I, 263 and 265 respectively comprise parts identical with the parts just described except that the ten-tooth ratchets 293, 295 and 291 each have a central hole of a diameter to receive the mating shaft.

The reset ratchet 293 has a bore 295 to fit the telescopic shaft I11 and a keyway 298 into which the shaft I11 is swedged as shown at 299, The ratchets 295 and 291 are attached to the shafts I19 and I8I, respectively, in the same manner.

Spacers 30I and holding pawls 303 are alternately arranged along one of the studs 251 outward from the driving disc 253 to align the holding pawls with the ratchets 281, 293, 295 and 291. Torsion springs 305 which urge the indexing pawls 285 in a counterclockwise direction also urge the holding pawls 303 in a clockwise direction as viewed in Figure 16. Another spacer 301 is mounted beyond the holding pawl for the first dial indicator indexing means and a cup-shaped case 309 which extends back over the driving disc is mounted on the studs 251. There are two holes 3II in the closed end of the cup allowing it to pass over the reduced threaded ends of the studs 251. Look washers 3 I 3 and nuts 3 I 5 complete the assembly. The cup also has four elongated slots 3I1 along one side, one in alignment with each lever 219 to permit insertion of the indexing lever 3I9, which is chained to the predeterminer to prevent loss. The lever receives the lever 219 and may be oscillated to reset the associated indicator.

Two additional shouldered and threaded studs 32I are riveted into the end of the cup 309 (Fig. 4) and a sprocket 323 is held in concentric relation to the cup by nuts 325.

A bail 321 (Figs. 4 and 6) is pivotally mounted for rocking motion on the shaft 329 which is supported in the frame I09. The bail has three projections 33I, 333 and 335 which respectively engage the second, third and fourth cams I55.

A lever 331 is disposed adjacent the end of the provided with a projection 341 which lies in the plane of the cam I43 and is adapted under certain conditions to enter the notch II thereof. The lever is also provided with a recess 349 which is adapted to be received between the upright arm of bail 321 and the head of rivet 339.

A spring 35I (Fig. 6) is hooked over the shaft 329 and through a hole 353 in the lever 33-1 urging the lever and bail 321 in a clockwise direction and the projections 33I, 333 and 335 on the bail and projection 341 on the lever into contact with the cams I55 and I43 respectively. An ear 355 is bent at right angles to the main portion of the lever on the bottom side and has a tapped hole 351 which receives the adjustable trip stud 359. The lock washer 39I and the jam nut 363 hold the trip stud in its adjusted position.

A right-angled latch plate 365 has one leg secured to the base I99 by screws 391 and washers 369 and has the other leg extending upward. A notch 31I extends down from the top of this leg and the lower wall defining the notch engages a notch 313 in the trip bar 21 when the valve 23 is open.

An emergency trip mechanism (Fig. 5) is designated generally by the numeral 315 and is comprised of a shaft 311 slidably mounted in a hole 319 in the frame and having a knob 38I pinned to the outside end and a bell crank 383 pivotally mounted on a shoulder screw 381 which enters the frame, said crank having one leg fastened to the other end of the shaft and the other leg having a bent-over ear 385 in position to lift the trip bar 21. Spring 389 has one end anchored to the lower end of the bell crank and the other end to a stud 39I having a knurled end pressed into a hole in the frame. The spring exerts a clockwise force on the bell crank, as viewed in Figure 5, which tends to keep the bell crank from dislodging the trip bar 21 from its latched position.

A cover 393 is placed on top of the frame I99 and held by screws 395. The cover has a pair of elongated holes 394 one of which is shown in Figure 6, through which the ends of the trip bar 21 extend and which serve as guides for the trip bar. The holes are high enough to permit lifting the bar to disengage the notches. A glass 391 is placed in a window 399 directly in front of the dial indicators. The cover also has an opening 49! at the top through which the shaft II3 extends. The opening is surrounded by a flange 493 for mounting a register, such as indicated by the numeral 2 i Chains 495 and 491 are placed over the sprockets 91 on the clutches 89 and the sprockets 323 on the predeterminers. Chain 491, due to pcsitioning of the meters, is shorter than chain 495.

Operation The proportioner shown in Figures 1 and 2 is piped to two liquid sources. Each liquid enters through a valve 23 and is metered individually, after which they converge into a common discharge through the T 63.

Each predeterminer is set for the desired quantity of liquid that is to pass through the respective meter. This is accomplished by inserting the indexing lever 3I9 through the slot 3I1 farthest to the left in the cup 399, as shown in Figure 4, and over the finger 219. A downward stroke of the lever will ratchet the first dial indicator around of a revolution. The motion is transmitted through the indexing as-- sembly 259 with pawl 285 moving the ratchet 291 and the shaft I15 clockwise, as viewed in Figure 16. Holding pawl 393 will be cammed in a counterclockwise direction and will engage the next notch when it comes into alignment. The keyway I83 at the other end of the shaft I15 will rotate with the shaft and engage the pawl I9I in the first dial indicator I25 and move the dial indicator I55 of one revolution per stroke of the indexing lever. The pawls I33 will slip on the ratchet MI. The strokes are repeated until such time as the desired number on dial I55 appears in the cover window. This first indicator may be graduated in tenths of a gallon, as shown, or in gallons with changes in the gearing.

The second, third and fourth dial indicators are set in the same manner by moving the other levers 219 and the quantity shown in the predeterminer window will be the predetermined quantity which will be delivered by its respective meter.

The valves 23 are now opened either singly or together, by depressing the levers 4I which will straighten the linkage 25 and will pull the trip bar 21 to the right. The notch 313 in each trip bar will engage the notch 31I in the corresponding latch plate 355 to hold the associated valve open.

The first dial indicators are now operated by the meters in a clockwise direction as viewed in Figure 6 by shaft l I I, worm I I5, worm wheel I I1, gears I2II23. For each revolution of the first indicator, the'step-tooth gear I41 and transfer pinion i14 advances the second indicator {7, of a revolution and so on. The notches I5I and 'I 51 in the cams I43 and I55 are positioned to allow the bail 321 to rock forward under the action of spring 35! and the lever 331 to move up and forward when the zeros on the indicators are in alignment with the cover window. In operation the dial indicators return to the zero position from left to right as viewed in Figure 4.. The spring 35I urges projections 33I, 333, 335 on bail 321 into engagement with the periphery of the cams I55 while the nose 341 is held away from cam I43 by the pin 339. When all'of the notches in cams I55 are in alignment with the bail, the bail will rotate clockwise (Fig. 6) and bring the nose 341 of lever 331 against cam I43 and when the cam notch I5I thereof aligns with nose 341, the lever will be moved forward by spring 35I and will enter the notch.

The edge of notch I5! will lift the lever and this will in turn lift trip stud 359 to raise the trip bar 21 so as to disengage the notches 31I-313. The spring 39 in the valve 23 will close the valve and move the trip lever 21 to the left (Fig. 2). Closing of the valves will take place separately as each preset quantity is delivered and as each meter is stopped by the associated valve when the indicators read zero, it will be necessary to again preset the indicators before proceeding with a further delivery.

The predeterminer is reset for repeat delivery by rotating the crank 83 and mechanism 11 which in turn rotates clutch mechanisms 89 and the respective shafts I15, I11, I19 and 181 "through pawls 393 and ratchets 261. The shaft I81 of 9. this group cannot be rotated in a clockwise direction, as viewed from the left in Figures 4 and 11, because the projection 225 of pawl 223 (Figs. '1, 8 and 9) occupies both of the notches 23I and MI on discs 229 and 239 and stop 2" engages 2H and therefore prevents the rotation of all of the shafts. Accordingly, it is necessary to operate the cup 25I, disc 253, hub 233 and disc 229 in a counterclockwise direction, whereupon the cam edge 232 of notch 23I will cam projection 225 out of the notches and disc 229 willcome to the position shown in Figure 8 where it is stopped by pin 235 hitting the lower edge of notch 245. Disc 23I is held against rotation by pawl 241. When projection 225 is cammed out of the notches, spring 249 will rotate plate 2 I 3 in a counterclockwise direction until projection 2I9 contacts the post 2. In other words, the parts move from the positions of Figure '7 to those of Figure 8.

Since disc 229 is now free from pawl 223, the projection 225 of which now rides on the circular outline of disc. 239, clockwise motion of disc 229 is now permitted.

Upon rotating cup 309 in the clockwise direction, pawls 393 drive ratchets 261, shafts I15, I11, I19 and IBI and the keyways I83, I35, I81 and I89 so that the latter will pick up the pawls ISI of the various indicator dials I25 and I31 and all of the indicator dials will be advanced until the numeral representing the predetermined quantity appears in the window 399. The keyways, of course, occupy the various positions to which they were preset by the lever 3 I 9.

During such rotation of the shafts, the pin 235 on disc 229 will contact the upper edge of notch 245 and the two discs 229 and 239 will rotate together in a clockwise direction. The notches 23I and 24I of the discs will be in alignment because of the relation of pin 235 to the notch 245 and as the cup rotates, the notches will arrive at the position shown in Figure 9 where spring 221 will force the projection 225 of pawl 223 into the aligned notches.

The rotation of the discs in this direction is continued, the lever 22I being carried along, and will be limited by the contact of projection 2I1 with post 2I I. At this point, which is exactly one revolution from the original, Figure '1 position, the preselected numeral for each of the indicator dials will have been aligned with and positioned in front of the window 399. Also, when the parts reach this position, pawl 241 will engage notch 243 to hold disc 239 against rotation in a counterclockwise direction under the influence of lever 22I and spring 249 (Figs. 8 and 9). It will be seen that further motion of the shafts I15, I3I in this direction is definitely limited because they are all looked together through cup 399 which is directly connected with disc 229 and because motion of the disc 229 in a clockwise direction is definitely limited through pawl 223 and plate 2I3 which carries the projection 2I1.

It will be seen that by reason of counterclockwise rotation of the'shaft I 51 at the outset of the resetting operation, the keyways I83, I85, I81 and I89 have been rotated through more than one revolution by the amount of the initial counterclockwise motion, thus insuring that all of the pawls IGI will be picked up in the resetting operation. This has the advantage that two complete revolutions of shaft I61 are avoided.

' The sprockets 323 which are fixed to the cups 'shown in detail in Figure 3.

reset stop mechanisms halt further motion. This occurs when the position shown in Figure 9 is reached by all of the stop mechanisms. The clutches again protect the predeterminer mechanisms against damage from excess rotation of the crank. The predeterminers are now reset for the succeeding delivery and it is necessary merely to reopen both Valves.

The emergency trip 325 may be pressed inwardly in case it is necessary to stop the delivery for any urgent reason, to lift the trip bar 21 out of its latched position and close the valve 23. After using the emergency trip, the predetermined delivery may be completed by opening the valves 23 and completing the delivery. The liquids delivered will be in the required proportion. A new delivery may be instituted by resetting the predeterminer before opening the valves but in this case there will be no assurance that the quantities dispensed prior to the operation of the trip are in the required proportion.

It is obvious that various changes may be made in the form, structure and arrangement of parts without departing from the spirit of the invention. Accordingly, applicant does not desire to be limited to the specific embodiment disclosed herein primarily for purposes of illustration; but instead, he desires protection falling fairly within the scope of the appended claims.

What I claim to be new and desire to protect by Letters Patent of the United States is:

1. In a proportionin apparatus the combination of a number of dispensing flow lines, a meter in each line, means for commingling the fluids delivered from said meters, control means in each line for starting and stopping the flow, a resettable predetermined stop mechanism driven by each meter and connected to actuate its control means to stop the flow, means for presetting each of said mechanisms to initial position for a predetermined delivery, and means for resetting said mechanisms simultaneously to their initial positions.

2. In a proportioning apparatus the combination of a number of dispensing flow lines, a meter in each line, means for commingling the fluids delivered from said meters, control means in each line for starting and stopping the flow, a resettable predetermined stop mechanism driven by each meter and connected to actuate the control means, means for presetting each of said mechanisms to initial position for a predetermined delivery, means driven by each meter for moving said mechanism to actuate the control means to stopping position, a single manual operator and mechanical means actuated by said operator for resetting said mechanisms simultaneously to their initial positions.

3. In a proportioning apparatus the combination of a, number of dispensing flow lines, a meter in each line, means for commingling the fluids delivered from said meters, control means in each line for starting and stopping the flow, a resettable predetermined stop mechanism driven by each meter and connected to actuate the control means to stop the meter, means for presetting each of said mechanisms to initial position fora predetermined delivery, means for resetting said mechanisms simultaneously to their initial positions after a delivery, comprising a single, manually operable element, and mechanical means connecting said element to drive said resetting means, said connectin means comprising a yieldable drive connection with each of said resetting means.

4. In a proportioning apparatus the combination of a number of dispensing flow lines, a meter in each line, means for commingling the fluids delivered from said meters, control means in each line for starting and stopping the flow, a resettable predetermined stop mechanism driven by each meter and connected to actuate the control means to stop the meter, means for presetting each of said mechanisms to initial position for a predetermined delivery, and means for resetting said mechanisms simultaneously to their initial positions after a delivery, comprising a single operator and mechanical means connecting said operator to actuate all of said resetting means, said mechanical means comprising an overload clutch connected with each resetting means.

5. In a proportioning apparatus the combination of a number of dispensing flow lines, a meter in each line, means for commingling the fluids delivered from said meters, control means in each line for starting and stopping the flow, a resettable predetermined stop mechanism driven by each meter and connected to actuate the control means to stop the meter, means for presetting each of said mechanisms to initial position for a predetermined delivery, resetting means rotatable in one direction for resetting said mechanisms simultaneously to their initial positions after a delivery, means for rotating the resetting means and means for preventing rotation of said resetting means in resetting direction until they have been first rotated in the opposite direction.

6. In a proportioning apparatus the combination of a number of dispensing flow lines, a meter in each line, means for commingling the fluids delivered from said meters, control means in each line for starting and stopping the flow, a resettable predetermined stop mechanism driven by each meter and connected to actuate the control means to stop the meter, means for presetting each of said mechanisms to initial position for a predetermined delivery, resetting means rotatable in one direction for resetting said mechanisms simultaneously to their initial positions after a delivery, means for rotating the resetting means and means for preventing rotation of said resetting means in resetting direction unti1 they have been first rotated in the opposite direction, said resetting means comprising an overload clutch which means yield in either direction of rotation.

7. In a, proportioning apparatus the combination of a number of dispensing flow lines, a meter in each line, means for commingling the fluids delivered from said meters, control means in each line for starting and stopping the flow, a resettable predetermined stop mechanism driven by each meter and connected to actuate the control means to stop the meter; means for presetting each of said mechanisms to initial position for a predetermined delivery, means for resetting said mechanisms simultanously to their initial posi- 12 tions after a delivery, said resetting means comprising an overload clutch connected with each resetting means, and means common to all of said clutches for driving them.

8. In a predetermined stop mechanism, the combination of a plurality of stop elements mounted for movement between preset and stop positions, means for individually presetting said elements, comprising individual ratchet means for each stop element and a setting pawl for each ratchet means, means for driving said elements to stop position, means for thereafter resetting said elements simultaneously to preset positions,

said resetting means comprising a member rotat-' able in a resetting direction and resetting pawl means in engagement with each ratchet means and, fixed to said member to be simultaneously rotatable therewith.

9. In a predetermined stop mechanism, the combination of a plurality of stop elements mounted for movement between preset and stop positions, a shaft for each element, said shafts being telescoped, means for individually presetting each element by rotating its shaft, said presetting means comprising individual ratchet means for each stop element and a setting pawl for each ratchet means, means for thereafter locking said ratchet means together, means for driving said elements to stop position and means for thereafter resetting said elements by simultaneously rotating said locking means in a resetting direction to preset position.

10. In a proportioning apparatus the combination of a number of dispensing flow lines, a meter in each line, means for commingling the fluids delivered from said meters, control means in each line for starting and stoppin the flow, a resettable predetermined stop mechanism driven by each meter and connected to actuate the control means to stop the meter, each mechanism comprising a plurality of stop elements, means comprising presettable telescoped shafts, one for each element for individually presetting said elements, means connecting the corresponding meter for driving said elements to stop position, means rotatable in one direction for restoring said shafts and elements simultaneously to their presetpositions, and means for preventing rotation of said restoring means in resetting direction until it has been first rotated in the opposite direction, said restoring means comprising overload clutch means which yield in either direction of rotation.

GERALD J. KLOPFENSTEIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,349,256 Bechtold Aug. 10, 1920 1,744,307 Gluck Jan. 21, 1930 1,823,960 Troutman Sept. 22, 1931 1,876,512 Pfening et a1. 1 Sept. 6, 1932 1,964,028 Boynton et al June 26, 1934 1,985,918 De Laney Jan. 1, 1935 2,051,597 Head Aug. 18, 1936 2,082,391 Granberg June 1, 1937 2,116,785 Griffith May 10, 1938 2,137,013 Bradley Nov. 15, 1938 2,196,805 Berck Apr. 9, 1940 2,340,743 Griffith Feb. 1, 1944. 

